I'm giving this until chapter 150 to correct itself or I'm dropping it. This whole arc has been the most stupid shit I've seen in a modern manga. I can practically see the editor reaching his grubby fingers into the story to try to change what it is so it's more generic and wide-appealing like the scum he probably is. Nobody gives a shit about this Melon character, they're poorly written with no real motivations and have done nothing to make the story more interesting.
I didn't read this for the action, I read it because the characters were actually interesting and not just the same tired genre tropes slapped into new bodies. Now they're rapidly turning into that. There's no room for character development in this plot that's going on. It's simultaneously too fast for anything interesting to happen with the characters but too slow to be interesting as an action story. There's plenty of other, better, action manga to read and I'm sure I can find a better character manga as well.